Remanufacturing Instructions

HPŽ 4200/4300 Toner Cartridge Remanufacturing Instructions...

4200/4300 Remanufacturing Instructions

Oasis Imaging Products, Inc. Technical Support: 888 757 0762

Memphis /

888 833 5727

Nashua, NH

Reference Information:

Q1338A (4200) 690 grams

Q1339A (4300) 1020 grams

OEM Yields:
4200: 12000 @ 5%
4300: 18000 @ 5%

Tools Required:

Phillips screwdriver
Small flat head screwdriver
Compressed air or toner vac

1. Remove the plastic drum shutter actuator arm
from the plastic post using a small flat head
screwdriver. Note: Be careful not to lose the
spring located in the plastic housing.
Remove the metal bar from both ends of the
cartridge and put assembly aside. (Fig. 1)

Fig. 1

2. Remove the four screws that hold the
left end cap in place. (Fig.2)

Fig. 2

3. Remove the left end cap after removing
the screws. (Fig. 3)

Fig. 3

4200 HP

4300

4. Remove the three screws that secure the right end
cap to the waste bin. Note: The screws secure the
waste bin to the end plate the end plate can not be
removed. (Fig. 4)

Fig. 4

5. Pry out on the end plate while pushing in
on the drum axle pin to free the waste bin
from the toner hopper section. (Fig. 5)

Fig. 4

Fig. 5

6. After removing the waste bin from the hopper assembly,
remove the drum axle gear and drum and set aside. (Fig. 6)

7. Remove the PCR and clean all contacts. (Fig. 7)

Fig.6

Fig. 7

8. The OEM wiper blade has a
spray on type foam along the
back edge to prevent leaking
from the waste bin. Using a
razor knife score the foam
separating it from the metal
stamping of the blade. (Fig. 8)

9. Once it is scored with the
knife it is easier to remove.
(Fig. 9)

Fig. 8

Fig. 9

10. Remove the two screws
that secure the wiper blade.
(Fig.10)

11. Remove the wiper blade
and thoroughly clean the
waste bin with compressed air
or vacuum. (Fig.11)

Fig.10

Fig. 11

12. Oasis PD department is
currently in the process of
qualifying a foam that can be
used to seal the backside of the
waste bin and wiper blade to
prevent leaking

(6/24/03).

Until this product is tested and
approved you can either use an
after market foam used for other
applications (Fig. 12) or your
preferred type of silicon caulking
when replacing the wiper blade.
At this Time you can reassemble
the waste bin in reverse order.

Fig. 10

Fig. 11

Fig. 12

13. Using a small flat head
screwdriver remove the metal
pin on the gear end of the mag
housing. (Fig.13)

14. Remove the mag stabilizer
by prying outward with a small
flat head screwdriver. (Fig. 14)

Fig.13

Fig.14

15. Remove the mag roller drive
gear. (Fig.15)

16. Remove one screw that holds
the mag roller stabilizer assembly in
place. Remove the tension spring
that is located below the screw.
(Fig. 16)

Fig.15

Fig. 16

17. Remove the mag roller
stabilizer assembly. (Fig. 17)

18. Be careful when removing
the assembly not to lose the
small bushing that is seated in a
slot in the Stabilizer assembly.
(Fig. 18)

Fig.17

Fig.18

19. Remove the mag roller and
clean with compressed air.
(Fig.19)

20. On the mag contact end
there is also a small stabilizer
bushing, Remove the bushing
and clean contacts with
99%IPA thoroughly. (Fig. 20)

New Hampshire

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(603) 880-3991 (630) 928-1543 (972) 613-0200 (714) 237-1880 (905) 568-3422 (901) 547-1149 011-31-24-3882233
(888) 627-6555 (888) 658-4555 (888) 591-3555 (888) 656-9555 (800) 430-7886 Fx: (901) 366-9756 Fx: 011-31-24-3557373
Fx: (603) 598-4277 Fx: (630) 928-1542 Fx: (972) 613-9850 Fx: (714) 237-1889 Fx: (905) 568-3491

Fig.19

Fig.20

21. Remove the two screws that secure the
doctor blade. (Fig. 21)

22. Remove and retain the left and right
side mag scrappers and gaskets. (Fig. 22)

23. Remove doctor blade and clean the
hopper thoroughly of all residual toner.
Fill hopper with the proper gram load of
toner and reassemble in reverse order.

Fig.21

Fig.22

Fig.23

4200 chip HP

4300 chip